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Two instruments are tuning to a device emitting a pure Concert A, $440\text{ Hertz}$.

The first instrument creates a beat frequency of $3\text{ Hertz}$ with the tuning tone.

The second instrument creates a beat frequency of $4\text{ Hertz}$ with the first instrument.

Which of the following can you conclude is the frequency of the second instrument?

A

$437\text{ Hertz}$

B

$439\text{ Hertz}$

C

$443\text{ Hertz}$

D

$452\text{ Hertz}$

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